Miner&#39;s lamp.



R. SEPPEL.

MINERS LAMP.

APPLICATION FILED JULY 22. 1909.

peror, and resident of'Bochum, in the Prov- -lower end a valve seat which is adapted to arena rio.

ROBERT SEIPPEL, OF BOCHUM, GERMANY.

MINERS Specification of Letters Patent.

LAMP.

Patented Mar. 29, 1910.

Application filed JuIy 22, 1909. Serial No. 508,901.

T o'aZZ fbhom 'it may concern.'

Be 1t known that I, ROBERT SEIPPEL, a subject of the King of Prussia, German Emince otl lVestphalia, German Empire, have invented certain new and useful Improvements in Miners Lamps, of which the fol'- lowing is a specification.

This invention relates to miners safety lamps-for burning acetylene and its object is to provide an improved construction of safety lamp of this ty e. A

The invention is illustrated by way of eitxmples in the accompanying drawings, in which- Figure 1 is a section through the lower part of a safety lamp according to the present invention. Fig. Q is a plan of the lamp with the ripper part of the cap removed to show the arrangement of the igniting device.

In carrying the invention into effect according to the form illustrated the lower art of the lamp is divided into two chamers. The lowerchamber 3 forms a carbid holder and the upper chamber 4 forms the water holder. The upper chamber which is directly above the carbid holder is provided with a passage 5 leading to the carbid holder. This passage is controlled by a cock 6. The cock 6 is operable from the outside of the water holder by means of a handle 7. A scale may., be provided on the side wall of the water holder to indicate the amount of opening and thereby enable the easy regulation of the water supply to the carbid. Leading from the upper end of the carbid holder 3 and passing centrally through the water holder there is a pipe 8. The acetylene generated in the holder i passes up through the tube 8 and then through ports t) to a chamber 10. From this chamber the acetylene passes through the opening 11 to the burner l2. The opening ll has at its be controlled by a Vspindle 13 extendino' downwardly through the pipe 8 and carbid holder 3 to be operated from the bottom of the holder by means of a milled wheel or the like la. A guide tube 15 extendin like a, sleeve over the spindle 13 is provide The water passing through the passage or connection 5 enters into a drop cap 16 and from this drop cap it falls onto the carbid in the required quantities.

Arranged around the burner 12 there is a glass cylinder 17 and above, this cylinder thereare arranged the usual wire netting shields which have not been illustrated and form no part of the invention The igniting device comprises in the form illustrated a band roll 20 which is provided at suitable intervals with caps 21 of a material which may be easily ignited by pel'-,

eussion. The band is guided over a plate 22 and 'then passes to a take-up roll 23. Bearing on the band where it passes over the plate 22 there is a spring 24. Itwill be seen thatwhen the takenp roll is rotated the caps y and thereby ignited.l The flame rising therefrom ignites the acetylene gas issuing from the burner. Such devices are known of themselves and the present invention relates to the method of operating the take-up roll Q3. According to the present invention the take-up roll is coupled to a flexible shaft 27 which. is inclosed within a tube 25 and is guided so as to pass through the side wall ot' the water holder to be operated b y the handle 26. It will be seen that with the construction of the lamp described the separate regulation'of the acetylene and water may be effected and the ignition device is very simply and easily operated.

1. In a safety lamp for acet lcne gas of the type described, a carbid liollder, a water holder directly above said carbid holder, a connection between said holders, a cock operable exterior-ly from the side of said holders, a pipe leading upwardly from said carbid holder through said Water holder, Va burner at the upper end of said pipe, a control valve arranged in said pipe before said burner, said control valve being operable from below the carbid chamber.

9.. In a safety lamp for acetylene gas of the type described in combination, a carbid bolder, a water holder' above said carbid holder, a connection between, said holders, a cock in said connection, a centrally arranged pipe passing from said carbid holder upward through said water holder, a burner lQleeve around said spindle where it passes Communicating with said pipe at its upperr `through the Suid tnbe and carbid holder. end, a, valve seating atizhe upper end of said E ln witness whereof I have hereunto set pipe and ut the enrnnce to Said burner, a l my Imnd in the presence of two Witnesses. Valve lSpindle passing dowinmrdly through ROBERT SETTPEL. [L s.] said pipo und carbid holder to be operatedl lVtnesses from the bottoni of said carbid holder to OTTO KNIG, control the supply of acetylene. andA a guide CHAS. J. WRIGHT. 

